1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18
19 package org.apache.naming;
20
21 import java.util.Iterator;
22
23 import javax.naming.NameClassPair;
24 import javax.naming.NamingEnumeration;
25 import javax.naming.NamingException;
26
27 /**
28 * Naming enumeration implementation.
29 *
30 * @author Remy Maucherat
31 */
32 public class NamingContextEnumeration
33 implements NamingEnumeration<NameClassPair> {
34
35
36 // ----------------------------------------------------------- Constructors
37
38
39 public NamingContextEnumeration(Iterator<NamingEntry> entries) {
40 iterator = entries;
41 }
42
43
44 // -------------------------------------------------------------- Variables
45
46
47 /**
48 * Underlying enumeration.
49 */
50 protected final Iterator<NamingEntry> iterator;
51
52
53 // --------------------------------------------------------- Public Methods
54
55
56 /**
57 * Retrieves the next element in the enumeration.
58 */
59 @Override
60 public NameClassPair next()
61 throws NamingException {
62 return nextElement();
63 }
64
65
66 /**
67 * Determines whether there are any more elements in the enumeration.
68 */
69 @Override
70 public boolean hasMore()
71 throws NamingException {
72 return iterator.hasNext();
73 }
74
75
76 /**
77 * Closes this enumeration.
78 */
79 @Override
80 public void close()
81 throws NamingException {
82 }
83
84
85 @Override
86 public boolean hasMoreElements() {
87 return iterator.hasNext();
88 }
89
90
91 @Override
92 public NameClassPair nextElement() {
93 NamingEntry entry = iterator.next();
94 return new NameClassPair(entry.name, entry.value.getClass().getName());
95 }
96
97
98 }
99
100